New Tactic For Failure Strategy?

As I mentioned HERE and HERE, "failure strategy" is a new tactic by which smaller forces can drain wealthy states like the US dry and create chaos among the citizenry.

Applying the lessons now learned from today's step-up in costly visible security, small forces can apparently attack less fortified institutions anywhere in the world (and apparently for any reason- especially if they claim to be Muslim) and still inflict psychological and economical damage on the USA.